There are 13 words that start with 'gia'.
| giant | giants | giaour |
| giaours | giardia | giantess |
| giantism | giardias | giantisms |
| giantlike | giantesses | giardiases |
| giardiasis | ||
Note: These 13 words that start with 'gia' are found from the USA & Canada version of the tournament Scrabble word list.